The two Continental TSIO-360, 220hp engines provide a cruise speed of 180 knots at a fuel burn of 20.6 Gallons per hour. The horsepower increase, with the new engines limit of 2800 rpm (up from 2575 rpm), combined for much improved climb and cruise performance. The new aircraft also incorporated a one-piece windshield and a bare metal instrument panel instead of one covered with a removable plastic fascia. Because of the raised zero-fuel weight and the raised maximum take-off weight, the Seneca III has the highest useful load of all the PA-34 variants.
ATC TRANSPONDER BENDIX TPR 2060
DME BENDIX DME 2030
DME COLLINS DME-451
RAD ALT KING KRA-10
VHF COM COLLINS VHF 251
VHF COM/NAV/GPS GARMIN INTERNATIONAL GNS 430
VHF COM/NAV/GPS GARMIN INTERNATIONAL GTN 750
DUAL ANALOG BASIC INSTRUMENTS
AUTO-PILOT (Not fully functional, needs replacing).